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Answer 1

+1 A:

I think you are close:

$pattern = '#^(?:[a-z]{2}/)?[a-z]+/(.+)/$#i';

Explanation:

#               - regex start
  ^             - start-of-string anchor
  (?:           - non-capturing group (I18N)
    [a-z]{2}    - 2 letter language code
    /           - a slash
  )?            - end non-capturing group, make optional
  [a-z]+        - any letter a-z, multiple times (event)
  /             - a slash
  (.+)          - group 1: any character, multiple times
  /             - a slash
  $             - end-of-string anchor
#i              - regex end, make case-insensitive

Tomalak 2010-04-08 16:29:03

Thanks for the contribution. `events/permalink` would fail unless you added a `?` after the last `/` and I think `ru/events/` would still pass. If it's not possible doing it like this, perhaps I could just make a group of words in the place of where `events` would be captured? eg (?:events|packages|specials) so it's a bit easier?

meder 2010-04-08 16:45:18

What about something as simple as `#[^/]{3,}/[^/]+/?$#`

meder 2010-04-08 16:52:41

@Fedor: You did *still* not exactly define your requirements. Please add to your question a definitive list of examples that show which strings should match and which should not.

Tomalak 2010-04-09 09:12:04

The stuff I had in the code blocks defines which should match and which shouldn't.

meder 2010-04-14 19:31:26

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Regex to detect a proper permalink?

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